<template>
  <div class="app-container">
    <el-form label-width="120px">
      <el-form-item label="信息描述">
        <el-tag type="info">上传历史事件excel模版说明</el-tag>
        <el-tag>
          <i class="el-icon-download" />
          <a
            :href="
'https://gis-visualization.oss-cn-beijing.aliyuncs.com/2021/02/25/event.xlsx'"
            >点击下载模版</a
          >
        </el-tag>
      </el-form-item>

      <el-form-item label="选择Excel">
        <!-- ref="upload" 唯一标识 -->
        <el-upload
          ref="upload"
          :auto-upload="false"
          :on-success="fileUploadSuccess"
          :on-error="fileUploadError"
          :disabled="importBtnDisabled"
          :limit="1"
          :action="BASE_API + '/visualization/historyevent/eventFromExcel'"
          name="file"
          accept="application/vnd.ms-excel"
        >
          <el-button slot="trigger" size="small" type="primary">选取文件</el-button>
          <el-button :loading="loading" style="margin-left: 10px" size="small" type="success" @click="submitUpload">{{ fileUploadBtnText }}</el-button>
        </el-upload>
      </el-form-item>
    </el-form>
  </div>
</template>
<script>
export default {
  data() {
    return {
      BASE_API: process.env.BASE_API, // 接口API地址
      //   OSS_PATH: process.env.OSS_PATH, // 阿里云OSS地址 存放一个模板excel文件
      fileUploadBtnText: '上传到服务器', // 按钮文字
      importBtnDisabled: false, // 按钮是否禁用,
      loading: false,
    }
  },
  created() {},
  methods: {
    //   点击按钮上传文件到接口中
    submitUpload() {
      // 表单提交
      this.fileUploadBtnText = '正在上传'
      this.importBtnDisabled = true
      this.loading = true
      this.$refs.upload.submit()
    },
    // 上传成功
    fileUploadSuccess(response) {
      if (response.success === true) {
        this.fileUploadBtnText = '导入成功'
        this.loading = false
        this.$message({
          type: 'success',
          message: response.message,
        })
      }
      //   跳转到课程分类列表中
      this.$router.push({ path: '/event/list' })
    },
    // 上传失败
    fileUploadError(response) {
      this.fileUploadBtnText = '导入失败'
      this.loading = false
      this.$message({
        type: 'error',
        message: response.message,
      })
    },
  },
}
</script>
<style scoped>
</style>